termid - determine terminal type

termid automatically determines the current terminal type and writes the type on the standard output. Typical usage is
from within a shell script. Terminals are identified by sending a terminal identification sequence to the terminal and examining the response.

If the terminal cannot be identified then default is output; if default is omitted then nothing is output and termid exits with exit code 1.

The following terminals are properly identified:

apollo

local apollo network terminals output as ap1

envision

Envision color graphics terminals output as envis

hp

HP 2600 series output as hp

tektronics

Tektronics graphics terminals output as 4105 or 4112

teletype

DMD 5620 terminals output as 5620

The options are:

-d

Enable debugging output.

-o

Print debugging output in octal.

-V

Print the program version.

sh(1)

Returns with exit code 1 if the terminal cannot be identified and default is omitted.

It is possible for the terminal identification sequence to lock up a terminal not included in the list above. Typing ahead at the terminal before termid completes may cause identification errors.

Glenn Fowler